I believe the issue is with your mailer settings and not SM.. I have used SM for more than 10 yrs and many configs and can send huge emails without problems.. -rich On Wed, Oct 31, 2018, 9:46 AM James B. Byrne via squirrelmail-users < squirrelmail-users@xxxxxxxxxxxxxxxxxxxxx> wrote: > This is ridiculous. I cannot compose a message of any reasonable > length in a separate window in SM without getting a security error > when I try and send. > > SquirrelMail version 1.4.23 [SVN] > By the SquirrelMail Project Team > ERROR > The current page request appears to have originated from an untrusted > source. > Go to the login page > > > When I try to recover the message contents and go back to the previous > page I get this: > > Document Expired > > This document is no longer available. > > The requested document is not available in Firefox’s cache. > > As a security precaution, Firefox does not automatically > re-request sensitive documents. > Click Try Again to re-request the document from the website. > > Where is this 'FEATURE'? configured and how do I turn it off? > > > > -- > *** e-Mail is NOT a SECURE channel *** > Do NOT transmit sensitive data via e-Mail > Do NOT open attachments nor follow links sent by e-Mail > > James B. Byrne mailto:ByrneJB@xxxxxxxxxxxxx > Harte & Lyne Limited http://www.harte-lyne.ca > 9 Brockley Drive vox: +1 905 561 1241 > Hamilton, Ontario fax: +1 905 561 0757 > Canada L8E 3C3 > > > > ----- > squirrelmail-users mailing list > Posting guidelines: http://squirrelmail.org/postingguidelines > List address: squirrelmail-users@xxxxxxxxxxxxxxxxxxxxx > List archives: http://news.gmane.org/gmane.mail.squirrelmail.user > List info (subscribe/unsubscribe/change options): > https://lists.sourceforge.net/lists/listinfo/squirrelmail-users > ----- squirrelmail-users mailing list Posting guidelines: http://squirrelmail.org/postingguidelines List address: squirrelmail-users@xxxxxxxxxxxxxxxxxxxxx List archives: http://news.gmane.org/gmane.mail.squirrelmail.user List info (subscribe/unsubscribe/change options): https://lists.sourceforge.net/lists/listinfo/squirrelmail-users